Experimental Research on Concrete Confined by Width and Spacing of Straps of GFRP Sheets

Abstract:

The technology of GFRP has received significant attentions in civil engineering due to their unique properties, such as high strength-to-weight radio, good resistance to corrosion and fatigue, convenient to construction and no additional dimension. Study the properties of GFRP confining concrete column through eight groups of columns subjected to axial loading, the effect of width of straps and spacing of straps of GFRP sheets confining concrete column is analyesed. The results are the axial compressive strength and ductility of concrete prism wrapped by GFRP sheets or GFRP straps have all increased to a certain degree, the process of destruction of concrete prism wrapped by GFRP become slower than common concrete prism.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 1621-1625
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.1621
• Online since: October 2011
• Authors: Hua Xin Liu, Dong Ming Wang
• Keywords: Concrete Prism, Glass Fiber Reinforced Polymer (GFRP), Spacing of Straps, Width of Straps

References

[1] Technical specification for strengthening concrete structures（CECS25-90）．Beijing: China Architectural & Building Architectural Press，(1990).

[2] ACI Committee 440．Guide for The Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structure，24 May (2001).

DOI: 10.14359/51700867

[3] Huaxin Liu, Dandan Wang, Rongshu Sun. Researches on Confinement effect of concrete column with Different CFRPS Strengthened amounts [J]. China Concrete and Cement Products. 2008, (5): 40-43.

[4] Yuxin Liu. Researches on GFRP-confined concrete column[D]. Master's Theses. Liaoning University of Technology，(2009).